April 1928: Daisy Dalrymple Fletcher is visited in London by her young cousins. On the list of must-see sites is the Crystal Palace. Discovering that her children's nanny, Nanny Gilpin, has never seen the Palace, Daisy decides to make a day of it—bringing her cousins, her 3-year-old twins, her step-daughter Belinda, the nurserymaid, and Nanny Gilpin. Yet this ordinary outing goes wrong when Mrs. Gilpin goes off to the ladies’ room and fails to return. When Daisy goes to look for her, she doesn't find her nanny but instead the body of another woman dressed in a nanny's uniform.
Meanwhile, Belinda and the cousins spot Mrs. Gilpin chasing after yet another nanny. Intrigued, they trail the two through the vast Crystal Palace and into the park. After briefly losing sight of their quarry, they stumble across Mrs. Gilpin lying unconscious in a small lake inhabited by huge concrete dinosaurs.
When she comes to, Mrs. Gilpin can't remember what happened after leaving the twins in the nurserymaid's care. Daisy's husband, Detective Chief Inspector Alec Fletcher of Scotland Yard, finds himself embroiled in the investigation of the murdered nanny. Worried about her children's own injured nanny, Daisy is determined to help. First she has to discover the identity of the third nanny, the presumed murderer, and to do so, Daisy must uncover why the amnesic Mrs. Gilpin deserted her charges to follow the missing third nanny.
Cyrus Barker, the most prominent and accomplished private enquiry agent in 19th century London, faces what might be the most dastardly crime of his career: his personal tobacconist has been murdered, his body found in his own humidor!
Now Cyrus Barker, with the help of his assistant, Thomas Llewelyn, must crisscross London in order to track the killer. As they follow the clues, Barker discovers that the victim, Vasilios Dimitriadis, was not a man worthy of Barker's trust. Can the Guv find whoever killed the skilled tobacco blender? While he is at it, can he find the secret formula Dimitriadis used to make his beloved tobacco blend?
Daisy and her husband Alec—Detective Chief Inspector Alec Fletcher, of Scotland Yard —go for a Sunday lunch with Daisy's friends, where one of the women mentions a wine cellar below their house, which remains curiously locked, no key to be found. Alec offers to pick the lock, but when he opens the door, what greets them is not a cache of wine, but the stench of a long-dead body.
And with that, what was a pleasant Sunday lunch has taken an unexpected turn. Now Daisy's three friends are the most obvious suspects in a murder and her husband Alec is a witness, so he can't officially take over the investigation. So before the local detective, Superintendent Underwood, can officially bring charges against her friends, Daisy is determined to use all her resources (Alec) and skills to solve the mystery behind this perplexing locked-room crime.
One of the most famous and beloved mysteries from the queen of suspense, Agatha Christie! More than 100 million copies sold and now a Lifetime TV movie.
Ten people, each with something to hide and something to fear, are invited to a isolated mansion on Indian Island by a host who, surprisingly, fails to appear. On the island they are cut off from everything but each other and the inescapable shadows of their own past lives. One by one, the guests share the darkest secrets of their wicked pasts. And one by one, they die…
Which among them is the killer and will any of them survive?